The 8BP450-100-3B-SFF from Planar Monolithics Industries is a Band Pass Filter with Frequency 400 to 500 MHz, Center Frequency 450 MHz, Insertion Loss 2 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Element Filter. More details for 8BP450-100-3B-SFF can be seen below.